Home / 3,431.58-4,732.99-2,155.83

Finding the Fourth Proportional to 3,431.58, 4,732.99 and 2,155.83

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Solution

The fourth proportional to 3,431.58, 4,732.99 and 2,155.83 is: 2,973.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.58 : 4,732.99 = 2,155.83 : x
  2. Step 2: Convert to fraction form
    3,431.58/4,732.99 = 2,155.83/x
  3. Step 3: Cross multiply
    3,431.58x = 4,732.99 × 2,155.83
  4. Step 4: Simplify right side
    3,431.58x = 10,203,521.83
  5. Step 5: Solve for x
    x = 10,203,521.83/3,431.58
  6. Step 6: Final answer
    x = 2,973.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.